Patents by Inventor Daniel A. Cargnel

Daniel A. Cargnel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD OF CLEANING MEMBRANES
    Publication number: 20080237125
    Abstract: The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.
    Type: Application
    Filed: May 30, 2008
    Publication date: October 2, 2008
    Inventors: Paul Martin Gallagher, Tom Rainier, Aaron J. Balczewski, Daniel A. Cargnel
  • Method of cleaning membranes
    Patent number: 6955762
    Abstract: The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: October 18, 2005
    Assignee: U. S. Filter Wastewater Group, Inc.
    Inventors: Paul Martin Gallagher, Tom Rainier, Aaron J. Balczewski, Daniel A. Cargnel
  • Method of cleaning membranes
    Publication number: 20050224411
    Abstract: The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.
    Type: Application
    Filed: June 6, 2005
    Publication date: October 13, 2005
    Inventors: Paul Gallagher, Tom Rainier, Aaron Balczewski, Daniel Cargnel
  • Method of cleaning membranes
    Publication number: 20050218073
    Abstract: The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods.
    Type: Application
    Filed: March 4, 2005
    Publication date: October 6, 2005
    Inventors: Paul Gallagher, Tom Rainier, Aaron Balczewski, Daniel Cargnel
  • Method of cleaning membranes
    Publication number: 20040000520
    Abstract: The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.
    Type: Application
    Filed: November 15, 2002
    Publication date: January 1, 2004
    Inventors: Paul Martin Gallagher, Tom Rainier, Aaron J. Balczewski, Daniel A. Cargnel
  • Method for removing fluoride from water
    Patent number: 5824227
    Abstract: A process for removing dissolved fluorides from an aqueous stream using at least two reactors wherein the dissolved fluoride containing aqueous feed and an unreacted aluminum containing sludge are combined in the first reactor to give a first reactor admixture after which the first reactor effluent stream is directed to the second reactor and therein combined with fresh alum and fresh sodium aluminate to give a second reactor admixture comprising a reduced fluoride aqueous solution and a partially reacted aluminum containing sludge and thereafter recovering the reduced fluoride aqueous solution and recycling at least a portion of the aluminum containing sludge to the first reactor.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: October 20, 1998
    Assignee: WMX Technologies, Inc.
    Inventors: Daniel A. Cargnel, Mark K. Crescenzi